34 REPORT OP BOARD OP PISH AND GAME COMMISSIONERS. 



Large Lake Trout — {Salmo m. tahoensis). 



Eggs received from Tahoe 92,922 



Loss in hatching 8.922 



Left for distribution 84,000 



Black-spotted Trout — {Salmo m. henshawii). 



Eggs received from Tahoe 370,104 



Loss in hatching 51.664 



Left for distribution 318,500 



SALMON. 



The salmon output, while not so heavy as in several previous seasons 

 brought many pleasing results. Several experiments have been made 

 and some 50,000 fish were marked in endeavors to find the most favor- 

 able points for the distribution of these fish. After years of investi- 

 gation I am of the opinion that the only successful way to rear salmon 

 is to hold them from five to seven months and then release them in 

 our rivers before the flood season. At this age they are able to escape 

 their enemies and take care of themselves until they have reached the 

 end of their long journey to the sea. By releasing them early, when 

 the temperature in the streams first lowers, and before the flood season, 

 they depart for their natural waters under most auspicious circum- 

 stances, and with no danger of being carried by the floods into the 

 overflow basins and left later to perish in the tule basins when the 

 flood waters have receded. 



The Federal Bureau is making arrangements to take the eggs of the 

 Silver salmon at Klamathon this year. They will be hatched at the 

 Sisson hatchery. 



The output of salmon follows : 



Eggs taken at Battle Creek Station and hatched at Sisson 5,890,000 



Loss 105,145 



Left for distribution .5,784,855 



Hatched at Sacramento Experimental Station 450,000 



Loss in shipping and hatching 92,300 



Left for distribution 357,700 



Following is a list of trout and grayling in the ponds at Sisson Sta- 

 tion, November 1, 1912 : 



Locii Leven. 



Adult 3,402 



Two year old 3,572 



One year old 10.500 



Fry 10.000 



27.474 



Eastern Brook. 



Adult 4,078 



Two year old 4,490 



One year old 5,879 



Frv 17.500 



  31,947 



Golden. 

 Yearlings 250 



Grayling. 

 Fry 4,000 



Hybrid Golden-Rainbow. 

 Adult , 57 



